Class [Mammalia] Linnaeus, 1758 - mammals Order Marsupialia Jameson, 1818 - marsupials see Cohort Marsupialia Jameson, 1818 Family Macropodidae Gray, 1821 - wallabies and kangaroos Genus Onychogalea Gray, 1841 - nail-tailed wallabies Onychogalea fraenata (Gould, 1840[1841]) - bridled nailtail wallaby